Add new MouseCursor interface for setting the mouse cursor.

ppapi/proxy/ppapi_messages.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Multiply-included message header, no traditional include guard.
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
@@ skipping 656 matching lines @@
                            uint32_t /* size */,
                            ppapi::HostResource /* result_resource */,
                            base::SharedMemoryHandle /* result_shm_handle */)
 
 // PPB_Core.
 IPC_MESSAGE_ROUTED1(PpapiHostMsg_PPBCore_AddRefResource,
                     ppapi::HostResource)
 IPC_MESSAGE_ROUTED1(PpapiHostMsg_PPBCore_ReleaseResource,
                     ppapi::HostResource)
 
-// PPB_CursorControl.
-IPC_SYNC_MESSAGE_ROUTED4_1(PpapiHostMsg_PPBCursorControl_SetCursor,

[dmichael (off chromium), 2012/03/26 17:43:17]

yeesh... more sync messages down, yay!

But it does beg the question...  is there any use case where an App needs to
know definitively that the cursor is now set? I think we can go with this and
see if anybody ever complains. It's probably perfectly fine in practice, but we
could add a completion callback later if we wanted.

-                           PP_Instance /* instance */,
-                           int32_t /* type */,
-                           ppapi::HostResource /* custom_image */,
-                           PP_Point /* hot_spot */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_LockCursor,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_UnlockCursor,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_HasCursorLock,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBCursorControl_CanLockCursor,
-                           PP_Instance /* instance */,
-                           PP_Bool /* result */)
-
 // PPB_FileChooser.
 IPC_SYNC_MESSAGE_ROUTED3_1(PpapiHostMsg_PPBFileChooser_Create,
                            PP_Instance /* instance */,
                            int /* mode */,
                            std::string /* accept_mime_types */,
                            ppapi::HostResource /* result */)
 IPC_MESSAGE_ROUTED4(PpapiHostMsg_PPBFileChooser_Show,
                     ppapi::HostResource /* file_chooser */,
                     bool /* save_as */,
                     std::string /* suggested_file_name */,
@@ skipping 229 matching lines @@
 IPC_SYNC_MESSAGE_ROUTED2_1(PpapiHostMsg_PPBInstance_DocumentCanAccessDocument,
                            PP_Instance /* active */,
                            PP_Instance /* target */,
                            PP_Bool /* result */)
 IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBInstance_GetDocumentURL,
                            PP_Instance /* active */,
                            ppapi::proxy::SerializedVar /* result */)
 IPC_SYNC_MESSAGE_ROUTED1_1(PpapiHostMsg_PPBInstance_GetPluginInstanceURL,
                            PP_Instance /* active */,
                            ppapi::proxy::SerializedVar /* result */)
+IPC_MESSAGE_ROUTED4(PpapiHostMsg_PPBInstance_SetCursor,
+                    PP_Instance /* instance */,
+                    int32_t /* type */,
+                    ppapi::HostResource /* custom_image */,
+                    PP_Point /* hot_spot */)
 
 IPC_SYNC_MESSAGE_ROUTED3_1(
     PpapiHostMsg_PPBPDF_GetFontFileWithFallback,
     PP_Instance /* instance */,
     ppapi::proxy::SerializedFontDescription /* description */,
     int32_t /* charset */,
     ppapi::HostResource /* result */)
 IPC_SYNC_MESSAGE_ROUTED2_1(
     PpapiHostMsg_PPBPDF_GetFontTableForPrivateFontFile,
     ppapi::HostResource /* font_file */,
@@ skipping 377 matching lines @@
 IPC_MESSAGE_CONTROL2(PpapiHostMsg_PPBTCPServerSocket_Accept,
                      int32 /* tcp_client_socket_routing_id */,
                      uint32 /* server_socket_id */)
 IPC_MESSAGE_CONTROL1(PpapiHostMsg_PPBTCPServerSocket_Destroy,
                      uint32 /* socket_id */)
 
 // PPB_Font.
 IPC_SYNC_MESSAGE_CONTROL0_1(PpapiHostMsg_PPBFont_GetFontFamilies,
                             std::string /* result */)
 #endif  // !defined(OS_NACL)